diff --git a/core-lib b/core-lib
index 47805b6db..5eac3287d 160000
--- a/core-lib
+++ b/core-lib
@@ -1 +1 @@
-Subproject commit 47805b6dbccc2616fa1768c486c5f9a7cca47f13
+Subproject commit 5eac3287df98d54a72e4f04e0f8b5f53077da9a2
diff --git a/tests/trufflesom/tests/BasicInterpreterTests.java b/tests/trufflesom/tests/BasicInterpreterTests.java
index 46a3e8944..76884924e 100644
--- a/tests/trufflesom/tests/BasicInterpreterTests.java
+++ b/tests/trufflesom/tests/BasicInterpreterTests.java
@@ -64,6 +64,9 @@ public static Iterable<Object[]> data() {
         {"Blocks", "testArg2", 77, Long.class},
         {"Blocks", "testArgAndLocal", 8, Long.class},
         {"Blocks", "testArgAndContext", 8, Long.class},
+        {"Blocks", "testEmptyZeroArg", 1, Long.class},
+        {"Blocks", "testEmptyOneArg", 1, Long.class},
+        {"Blocks", "testEmptyTwoArg", 1, Long.class},
 
         {"Return", "testReturnSelf", "Return", SClass.class},
         {"Return", "testReturnSelfImplicitly", "Return", SClass.class},
@@ -117,10 +120,12 @@ public static Iterable<Object[]> data() {
 
         {"Regressions", "testSymbolEquality", 1, Long.class},
         {"Regressions", "testSymbolReferenceEquality", 1, Long.class},
+        {"Regressions", "testUninitializedLocal", 1, Long.class},
+        {"Regressions", "testUninitializedLocalInBlock", 1, Long.class},
 
         {"BinaryOperation", "test", 3 + 8, Long.class},
 
-        {"NumberOfTests", "numberOfTests", 52, Long.class}
+        {"NumberOfTests", "numberOfTests", 57, Long.class}
     });
   }